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首页> 外文期刊>Combustion Science and Technology >MODELING OF NO_x EMISSIONS FROM FLUIDIZED BED COMBUSTION OF HIGH VOLATILE LIGNITES
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MODELING OF NO_x EMISSIONS FROM FLUIDIZED BED COMBUSTION OF HIGH VOLATILE LIGNITES

机译：高挥发分流化床燃烧NO_x排放的模型

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摘要

A comprehensive model, previously developed and tested for prediction of behavior of continuous fluidized bed combustors is extended to incorporate NO_x formation and reduction reactions and applied to the simulation of Middle East Technical University (METU) 0.3 MW_t Atmospheric Bubbling Fluidized Bed Combustor (ABFBC) burning lignites with high Volatile Matter/Fixed Carbon (VM/FC) ratios in their own ashes. Favorable comparisons are obtained between the predicted and measured temperatures and concentrations of gaseous species along the combustor. Results show that determination of partitioning of coal nitrogen into char-N and volatile-N, char combustion rate, and amount of volatile nitrogen released along the combustor are found to be the most important parameters that affect NO formation and reduction in bubbling fluidized bed combustors.
机译：扩展了先前开发和测试的用于预测连续流化床燃烧器性能的综合模型，以结合NO_x的形成和还原反应，并将其应用于中东工业大学（METU）0.3 MW_t大气鼓泡流化床燃烧器（ABFBC）燃烧的模拟灰烬中挥发性物质/固定碳（VM / FC）比高的褐煤。在预测和测量的温度以及沿燃烧器的气态物质浓度之间获得了有利的比较。结果表明，确定煤氮在焦碳和挥发性氮中的分配，焦炭燃烧速率以及沿燃烧器释放的挥发性氮的量是影响鼓泡流化床燃烧器中NO形成和还原的最重要参数。 。

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